Page 61 - MerCruiser_Catalog_Flipbook

MerCruiser

LOWER DRIVE SHAFT, PROP SHAFT & SHIFT SHAFT IDENTIFICATION

Lower Drive Shafts Prop Shafts
No. 11110 No. 11155
OEM: 45-41939F1 OEM: 44-850308
For Mercruiser I, For MC-I / R /
except MR/ALPHA MR / Alpha One &
Length: 18-3/4” Alpha One Gen II
Bearing Journal ø: 1” Length: 15-1/2”
Gear Splines: 11 Bearing Journal ø:1-3/16”
Prop Splines: 15
No. 11120 Prop Thrust Washer: 21301
OEM: 45-42634
For MR/ALPHA drives
w/o preload pins Carrier
Length: 18-3/16” Length Needle Bearing Length
Bearing Journal ø: 1-1/8” Journal ø
Gear Splines: 13
No. 11140 Prop Thrust Washer
OEM: 45-816919, 45-816472
45-853647, 45-853648
For Alpha One Gen II Pinion
(1991 & Up) Fits All Ratio Bearing
Length: 18-3/16” Journal Prop Splines
Bearing Journal ø: 1-1/8” ø
Gear Splines: 13
Pinion Gear
Splines
Lower Shift Shafts
No. 21031 No. 21030
OEM: 815919A1 Length OEM: 77481-1 Length
For Alpha Gen II For MC-I / R / MR
Length: 12-1/8” Alpha One
Length: 9-1/4”
LOWER DRIVE SHAFT, PROP SHAFT & SHIFT SHAFT APPLICATIONS
Serial No. Lower Gearcase
Model Year Prop Shaft Shift Shaft
Range Driveshaft
IA / IB / IC EZ 1965-1966 1776349-2065186 - N.L.A. 21030
120 / 140 1967-1969 2062141-2791956 - N.L.A. 21030
120 / 140 1970-1982 2791957-6225576 11110 11155 21030
470 / 485 1976-1982 4208730-6225575 11110 11155 21030
160 1967-1969 2065190-2763441 - N.L.A. 21030
165 1970-1981 2763442 & Up 11110 11155 21030
888 / 225 / 233 1971-1977 3106717 & Up 11110 11155 21030
898 / 228 / 250 / 260 1977-1982 4782330-6225576 11110 11155 21030
R 1983 6225577 & Up 11110 11155 21030
MR / Alpha One Grcs. 1984-1990 6225577 & Up 11120 11155 21030
MR / Alpha One (CS) 1984-1990 6225577 & Up 11120 - 21030
Alpha One SS 1986-1989 0A545004 & Up - 11155 -
Alpha One Gen II 1991-1997 0D469859-0K999999 11140 11155 21031
Alpha One Gen II (CR) 1991-1995 0D469859-0F679999 11140 - 21031
Alpha One Gen II (CR) 1996-1997 0F680000-0K999999 11140 - 21031
Alpha One Gen II 1998 & Up 0L100040 & Up 11140 11155 21031
Alpha One Gen II (CR) 1998 & Up 0L100040 & Up - - 21031

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